Ventilating and cooling system for batteries.



C. H. BEDELL & G. E. EDGAR. VENTILATING AND 000mm SYSTEM FOR BATTERIES.

APPLICATION FILED AUG. 7, 1911.

2 SHEETS-SHEET 1 Patented Aug, 20, 1912.

5 M m L r y a; Z M 5 c a m m W ATTORNEYS '0. H. BBDBLL & G. E. EDGAR. VBNTILATING AND 000mm SYSTEM FOR BATTERIES.

APPLICATION IiLED AUG. 7, 1911.

1,036,063, Patented Aug .20,1912.

2 SHBETBSHEBT 2.

WITNESSES! IN EN DB (A A A J ATTORNEYS UNITED STATES. PATENT OFFICE.

CHARLES H. BEDELL AND GRANT E. EDGAR, OF NEW LONDON, CONNECTICUT.

VENTILA'IING AND COOLING SYSTEM EOR'BATTERIES.

. Specification 01 Letters Patent.

Application filed August 7, 1911. Serial No. 642,610.

C To all whom it may concern:

Beit known that we, CHARLES H. BEnnLL and GRANT'E. EDGAR, citizens of the United States, residing at New London, in the, county of New London and State of 0011- necticut, have invented certain new and use- .ful Improvements in a Ventilating and cool ing System for Batteries; and we'do'hereby declare the followin to be a full, clear, and:

exact description? the invention, such as will enable others-skilled in the art to which itappertains to'make and use the same.

This invention relates to aventilating: and cooling systemztor battery installations, and moreparticularly toone for storage cells in-j closed in tanks or-- compartments in submarine boats or likeplaces where the surrounding water or airis at a comparatively high temperature.

The ordinary charging process and for cooling the cells Y for supplying air near the surfaceof the during charging and discharging processes, are not sufiicient for these purposes in tropical climates.

The particular object of this invent-ionis' to provide a ventilating and cooling system suflicient'even for such climates, wherein the noxious gases generated during the charging process are efliciently removed and wherein the electrolyte is kept below an undesirable temperature at all times. The ject is attained 'by discharging air, artificiall cooled if desired, from separate pipes ext-en ing close to the surface of the -ele'ctrolyte in each cell, and also discharging air or other cooling medium from otherpipes' I exteriorly of the cells, so as to efliciently cool them, both interiorly and exteriorly;' in combin'ationwith means fordividing the.

.tank into gas tight compartments whereby the pocket-mg of noxiousgasesis prevented and the cooling mediums are kept apart.

In the accompanying drawin s, illustrat ing the preferred embodiment o .our'invention, Fi re 1 is a'plan view of a batteryinstallationwherein the top-cover and the horizontalpartition are partly broken away to'show the interior-of the compartments;- Fig. 2 is a verticaltransverse sect-ion on line 2--2 of Fig. .1; Fig.1, is a vertical 'longitu dinal section on line 3- -3 of Fig; 1 'F1g. 4' is an enlarged view of the branch connection electrolyte-; and Fig. 5 is an enlarged view at right angles to Fi 4. a

systemsof ventilation. for removing thegases generated during the- 'ously in The tankl consists of a bottom part ahd sides in the form of an ordinary box or compartment, andhas a cover 2 which may fitwith a' water tight joint or otherwise. The tank is divided into smaller compartments by the transverse verticalpartitions 3 which extend from the bottom of the tank to the top thereof, so that when the-- cover is in place, the adjoinin maintained gas t-ig tto reventthe'eooli ng medium from passing romone compartment to anothen- However, this arran ment may be modified so that the separate compartments are in communication with Thehorizontal partitions 4 one another. are closely fitted to the sides ofthe tank and to the cells'to maintain a gas-tightjoint- Patented Au 2 1912..

compartments may be as between the upper compartment and the f lower compartment, 30 that the cooling me- .from passing from the upper compartment,

to the lower compartment and becoming pocketed in the lower compartment toform explosive a'ndhighly destructive mixtures. If the medium for cooli'n the exterior of the cells'is' a liquid,"the horizontalpa rtit-ions prevent the liquid from'rising into the up per compartment and. flooding the cells.

Each of the cells has ajar 5, 0f rubber, wood or otheiwsuitable material, in which ordinary battery plates 6'with openin s 25. are placed in the usual manner, the

by stands 24. These lates are provided with the ordinary lugs or supporting them from the sides of the cell.- In some cases the ing supported from the bottom of the tank electrolyte does not reach the .top of the.-

'platesso that the aii space just above the electrolyte and between. the compact] farfran ed plates is considerably restricted,

whi e in other cases the electrolyte covers all of theplates excepting the connecting lugs.

' Althou h.;the construction mavbe variifiedg'we prefer to provide for each upper compartment a ventilating pipeclosed at its outer end by a cap-Sand connected at its other end toya. common. inlet header 9.

' From each of the inlet pipes' 7 there-is a V the plates whereby the electrolyte in each cell may be individually and efliciently cooled and the noxious gases efficiently removed. Where the electrolyte covers the plates the spout need not be flattened to such an extent, although it is desirable to flare the outlet in .order to distribute the cooling medium over a large surface of the electrolyte. With this construction, we provide an outlet 12 communicating with each of the upper compartments and connected to a common outlet header 13. For circulating the air through the upper compartments, we may use a forced draft system, in which the discharge end of the blower should 'be connected to the inlet pipe 14, or we may use a suction system in which case the suction end of the blower should be connected to the outlet pipe 15.

. f The pipes for supplying the cooling me dium to the lower compartments are similar to those described above for the upper compartments,consisting of an inlet header 16 and a pipe 17 closed at its outer end by a cap 18 and extending within each of the lower compartments. If the cooling medium for the exterior of the cells is air, we prefer to provide a branch connection 19 which extends to a point just underneath the exterior of each cell. of the cells are individually and efficiently cooled. If, however, the cooling medium for the lower compartments is water or other liquid, it is not so essential to provide a branch connection for each cell, but only to provide a plurality of such connections whereby the cooling liquid reaches each cell before becoming heated.

We show an outlet pipe 20 for each of the lower compartments and a common header 21 whereby the cooling medium may be removed by fans or pumps in any well known way, by connection to the inlet pipe 22 or the outlet pipe 23, as desired.

In some cases it may be desirable to artificially cool the air or liquid before its passage into the battery compartment. This may be done in any well known way.

Having thus described our invention, what we claim is:

1. In a ventilatingand cooling system for battery installations, a tank, a plurality of By these means the exterior.

cells in said tank each containing plates and electrolyte, an air inlet pipe, a branch connection for each cell extending from said pipe to a point between adjacent plates and near the surface of the electrolyte, and an air outlet from said tank, whereby the electrolyte in each cellmay be individually cooled and the noxious gases etficientlv removed. I w v 2. In a ventilating and cooling system for battery installations, a tank, a cell in said tank containing electrolyte and compactly arranged plates, an air inlet pipe, and a to a point just above the surface of the electrolyte, said pipe being provided at its outer end with a flattened spout whereby it may project into the space between the plates, 7

3. In a ventilating and cooling system for ,battery installation, a tank, a cell in said tank containing electrolyte and compactly arranged plates, an air inlet'pipe, and a branch connection extending from said pipe to a point just above the surface of the electrolyte, said pipe being provided at its outer end with a flattened and flared spout, whereby it may project into the space between the compactly arranged plates and cover an extended surface of said electrolyte.

battery installations, a tank, a plurality of cells in said tank, an inlet pipe for a cooling liquid extending within said tank, a plurality of branch connections from said pipe to points within the tank exterior to said cells, and an outlet from said tank, whereby the exterior of said cells may be efliciently cooled.

5. In a ventilating and cooling system for battery installations, a tank, a plurality of cells in said tank, an inlet pi e for a cooling liquid, a branch connection or each cell excell, and an outlet from said tank, whereby 6. In a ventilating and cooling system for battery installations, a tank containing cells, means for inclosing said cells into gastight compartments, inlet and outlet-pipes for each of said compartments, and a pipe connection from an Inlet pipe to a point within each of said cells, whereby the electrolyte in each cell is separately cooled, and a plurality of discharge pipes for a coohng 7. In a ventilating and cooling system for battery installations, a tank containing cells, means for dividing said tank into upper and lower compartments, for each of the upper campartments an air inlet pipe having separate branch connections extending withm the separate cells, for said lower compartment an inlet for a cooling liquid having a branch'connection extending from said pipe tending from said pipe to a point below the liquid connected to an inlet pipe, whereby the exterior of the cells is efiic1ently cooled.

4. In a ventilating and cooling system for the cells are individually cooled exteriorly. V

let for each of said compartments, whereby both the interior and exterior of the cells' are efiiciefitly ventilated and cooled.

8. In 'a Ventilating and cooling system for battery installations, a tank divided into upper and lower compartments, a plurality of cells in said tank, an inlet pipe for a cooling liquid extending within the lower compartment of'saidtank exteriorly of said cells. and an outlet pipe from the lowercompartment for said liquid, whereby the exterior of the cells may be efliciently cooled with water or other liquid without permitting the liquid to enter the cells. I

In testimony whereof We afiix our signatures, in presence of two Witnesses.

' CHARLES H. BEDELL.

GRANT E. EDGAR. Witnesses:-

F. L, BRAKE, W. D. Fnsnnn. 

